Denial of Service Vulnerability in Oracle Solaris by Oracle Systems
CVE-2026-91254

7.5HIGH

Key Information:

Vendor

Oracle
Status
Oracle Solaris
Vendor
CVE Published:
20 October 2026

What is CVE-2026-91254?

A vulnerability has been identified in the Oracle Solaris product from Oracle Systems, specifically within the Kernel component. This vulnerability is easily exploitable by an unauthenticated attacker who has network access via HTTP. An attack could result in the unauthorized crashing of Oracle Solaris or causing the system to hang repeatedly, leading to a denial-of-service condition. Organizations utilizing affected versions should take proactive measures to mitigate potential impacts on system availability.

Affected Version(s)

Oracle Solaris 11.4

References

https://www.oracle.com/security-alerts/cpuoct2026.html
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.